CN218450224U - Multifunctional audio and video signal extension device - Google Patents
Multifunctional audio and video signal extension device Download PDFInfo
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- CN218450224U CN218450224U CN202222871241.6U CN202222871241U CN218450224U CN 218450224 U CN218450224 U CN 218450224U CN 202222871241 U CN202222871241 U CN 202222871241U CN 218450224 U CN218450224 U CN 218450224U
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Abstract
The utility model discloses a multifunctional audio and video signal extension device, which comprises a transmitter for receiving signals from a signal source, a receiver for sending signals to a target end, and a twisted pair for communicating the transmitter and the receiver; the transmitter comprises an HDMI input interface, a first KVM module, a first SPDIF module, a first infrared module, a first signal processor, an RJ45 output interface and a first power supply for supplying power to the transmitter circuit; the receiver comprises an RJ45 output interface, a second KVM module, a second SPDIF module, a second infrared module, a second signal processor, an HDMI output interface and a second power supply for supplying power to the receiver circuit; compared with the prior art, the utility model discloses can utilize twisted-pair remote transmission high definition video signal, infrared remote control signal, digital audio signal and KVM signal, the user passes through a plurality of function ports commonly used that transmitter or receiver can the remote access computer, and the practicality novelty is stronger, has wide market prospect.
Description
Technical Field
The utility model relates to an audio and video transmission technical field especially relates to a multi-functional audio and video signal extension fixture.
Background
Along with the development of electronics and communication technology, various audio-visual equipment and computers are used in a large number, and when the audio-visual equipment is used, a signal source and a terminal are often far away, and signals can be greatly attenuated during transmission, and the defects of various existing signal enhancement equipment on the market are as follows: the market urgently needs a transmission extender which can transmit high-definition audio and video signals, infrared remote control signals, remote control signals and digital audio signals by utilizing a twisted pair.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve prior art's above-mentioned problem, provide an utilize transmission extender of remote transmission high definition audio and video signal, infrared remote control signal, digital audio signal and simple installation of paired line.
In order to solve the technical problem, the utility model provides a multifunctional audio/video signal extension device, which is characterized in that the device comprises a transmitter for receiving signals from a signal source, a receiver for sending signals to a target end, and a twisted pair for communicating the transmitter and the receiver; the transmitter comprises an HDMI input interface, a first KVM module, a first SPDIF module, a first infrared module, a first signal processor, an RJ45 output interface and a first power supply for supplying power to the transmitter circuit; the receiver comprises an RJ45 output interface, a second KVM module, a second SPDIF module, a second infrared module, a second signal processor, an HDMI output interface and a second power supply for supplying power to the receiver circuit, and the second power supply supplies power to all parts of the receiver circuit.
As a preferred technical solution, the first SPDIF module includes a first SPDIF transmitting interface and a first SPDIF receiving interface, and the first SPDIF transmitting interface and the first SPDIF receiving interface are respectively connected to the first signal processor.
As a preferred technical solution, the second SPDIF module includes a second SPDIF transmitting interface and a second SPDIF receiving interface, and the second SPDIF transmitting interface and the second SPDIF receiving interface are respectively connected to the second signal processor.
As a preferred technical scheme, the first infrared module and the second infrared module respectively include a signal transmitting head and a signal receiving head, and the signal transmitting head and the signal receiving head are used for connecting infrared equipment to realize bidirectional infrared control of the first infrared module and the second infrared module.
As a preferred technical solution, the first KVM module is connected to the computer host through a USB cable, and the second KVM module is connected to the mouse and the keyboard through a USB cable.
As a preferred technical solution, the second KVM module includes a dual-layer port to which a mouse and a keyboard can be connected.
As a preferred technical solution, the apparatus further comprises an audio mode selection switch disposed outside the transmitter and the receiver, wherein the audio mode selection switch can selectively switch and output the SPDIF audio signal or the ARC audio signal.
As a preferred technical solution, the twisted pair is one of Cat5e line, cat6 line and Cat7 line.
The utility model discloses a multi-functional high definition audio and video signal extension device can reach following beneficial effect:
the ultra-high-definition video signal, the infrared remote control signal, the digital audio signal and the KVM signal are transmitted by the twisted-pair line in a long distance, a user can remotely access a plurality of commonly-used functional ports of a computer through the transmitter or the receiver, and the computer remote control system is high in practicability and has wide market prospect.
Drawings
Fig. 1 is a schematic structural view of an extension device according to an embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
As shown in fig. 1, it is a schematic structural diagram of an extension device according to the present invention. The transmitter comprises an HDMI input interface 15, a first KVM module 14, a first SPDIF module 13, a first infrared module 12, a first signal processor 11, an RJ45 output interface 16, and a first power supply for supplying power to the receiver circuit; the receiver comprises an RJ45 input interface 26, a second KVM module 24, a second SPDIF module 23, a second infrared module 22, a second signal processor 21, an HDMI output interface 25 and a second power supply to power the receiver circuitry.
The HDMI input interface 15 is used for connecting a high-definition video signal source to access a first high-definition audio and video signal; and signal sources with HDMI output interfaces, such as DVD, PS3, set-top boxes, PCs and the like.
The second HDMI interface 25 is connected to the second signal processor 21, and is configured to output the second high-definition audio/video signal to a high-definition HDMI display device for playing; the HDMI display device with HDMI input interface, such as TV set, projector.
The RJ45 output interface of the transmitter is connected to the RJ45 input interface 26 of the receiver with a single CAT5e or CAT6a or CAT7 twisted pair.
The transmitter is provided with a first SPDIF module 13, and the first SPDIF module 13 includes a first SPDIF transmitting interface and a first SPDIF receiving interface, and the first SPDIF transmitting interface and the first SPDIF receiving interface are respectively connected to the first signal processor 11. The first signal processor 11 separates and synchronously outputs the audio part used for separating the HDMI signal at the output end, and further processes the separated audio, so that the output audio can respectively support SPDIF audio or ARC audio bidirectional transmission, two audio output ports can select bidirectional transmission, and good compatibility of different playback devices is realized.
The receiver is provided with a second SPDIF module 23, the second SPDIF module 23 includes a second SPDIF transmitting interface and a second SPDIF receiving interface, and the second SPDIF transmitting interface and the second SPDIF receiving interface are respectively connected to the second signal processor 21.
When the digital audio playing device works, under the condition that the transmitter is connected with the optical cable through the first SPDIF receiving interface, the first signal processor 11 separates out an audio part in the HDMI signal, further encodes and processes the separated audio, outputs the encoded audio to the receiver through the RJ45 output interface 16, and the receiver analyzes encoded information, restores the encoded information into a digital audio signal and outputs the digital audio signal to external audio playing equipment through the second SPDIF transmitting interface;
similarly, when the receiver is connected to the optical cable through the second SPDIF receiving interface, the second signal processor 21 separates an audio portion from the HDMI signal, further encodes the separated audio, and outputs the encoded audio to the receiver through the RJ45 input interface 26, and the receiver parses the encoded information, restores the encoded information into a digital audio signal, and outputs the digital audio signal to the external audio playing device through the first SPDIF output interface;
in this embodiment, the apparatus further includes an audio mode selection switch disposed outside the receiver and the receiver, where the audio mode selection switch can selectively parse out the SPDIF audio signal or the ARC audio signal.
When the audio switch is switched to the SPDIF audio mode, the first SPDIF module 13 receives an SPDIF audio signal output by an external audio device, the first signal processor 11 encodes the SPDIF audio signal and outputs the encoded SPDIF audio signal to the receiver through the twisted pair, and the second signal processor 21 analyzes the encoded information and outputs the encoded information to the external audio device through the second SPDIF transmitting interface;
or, the second SPDIF module 23 receives the SPDIF audio signal output by the external audio device, the second signal processor 21 encodes the SPDIF audio signal and outputs the encoded SPDIF audio signal to the transmitter through the twisted pair, and the first signal processor 11 analyzes the encoded information and outputs the encoded information to the external audio device through the first SPDIF transmitting interface.
When the audio switch of the receiver is switched to the ARC audio mode, the second signal processor 21 receives the ARC signal returned by the HDMI output interface 25, the second signal processor 21 encodes the ARC signal and outputs the encoded ARC signal to the transmitter through the twisted pair, and the first signal processor 11 performs SPDIF analysis on the ARC encoded signal and outputs the resulting encoded ARC signal to the external audio device through the first SPDIF transmission interface or outputs the resulting encoded ARC signal to the external HDMI display device through the HDMI input interface.
Similarly, when the audio switch of the transmitter is switched to the ARC audio mode, the first signal processor 11 receives the ARC signal returned by the HDMI input interface 15, the first signal processor 11 encodes the ARC signal and outputs the encoded ARC signal to the receiver through the twisted pair, and the second signal processor 21 analyzes the ARC encoded information and outputs the encoded ARC signal to the external audio device through the second SPDIF transmission interface, or outputs the encoded ARC signal to the external HDMI display device through the HDMI output interface 25.
The external HDMI display device is a high-definition television, a projector and the like, and the device audio device comprises a loudspeaker, a loudspeaker and the like.
In this embodiment, the ARC mode transmission is adopted, so that the complexity of the analog pre-filter and the analog post-filter can be reduced, the HD audio standard is met, and the method can be directly applied to HDCD, DVDAudio, blu-ray disc, digital music download service, digital pair media player service and the like. The ARC ensures forward compatibility between audio devices (e.g., echo wall, audio/video receiver (AVR), television), supports HDMI cable to provide a dedicated audio link, and greatly improves compatibility, convenience, and audio performance. The receiver and the receiver dedicated control signal also transmit the lip sync information, ensuring that the audio and video can cooperate seamlessly in the home theater, keeping consistent. A user can easily and freely select and operate the audio through a software interface, so that the overall compatibility of the product is improved, and the use scene of the product is widened.
In this embodiment, the transmitter is provided with a first infrared module 12, the first infrared module 12 includes a first infrared receiving module and a first infrared transmitting module, and the first infrared receiving module and the first infrared transmitting module are respectively connected to the first signal processor 11.
The receiver is further provided with a second infrared module 22, the second infrared module 22 comprises a second infrared receiving module and a second infrared transmitting module, and the second infrared receiving module and the second infrared transmitting module are respectively connected with the second signal processor 21.
The product supports bidirectional infrared return, HDMI display equipment such as a television and the like can be controlled at the transmitter end through a remote controller, and source equipment such as a DVD and the like can also be controlled at the receiver end through the remote controller; if controlled at the receiver, the infrared transmitting extension is connected to the signal transmitting head of the first infrared module 12 and the infrared receiving extension is connected to the signal receiving head of the second infrared module 22. If the control is carried out at the transmitter end, the infrared receiving extension line is connected with the signal receiving head of the first infrared module 12, and the infrared transmitting extension line is connected with the signal transmitting head of the second infrared module 22, so that the bidirectional infrared control for the far-end and local equipment is realized.
In this embodiment, the transmitter has a first KVM module 14, and the first KVM module 14 is connected to the first signal processor 11. The receiver is further provided with a second KVM module 24, the second KVM module 24 is connected to the second signal processor 21.
The working process is as follows: the video signal and USB of the local host computer are extended to the target end through a pair of transmitter and receiver which are connected by twisted pair, and the receiver can control the remote host computer and display the remote host computer picture in real time through a mouse and a keyboard. The transmitter is used for amplifying and transmitting a signal of the local host to the receiver in real time, analyzing a keyboard and mouse signal returned by the receiver in real time to the local host, and transmitting a host picture in real time; the receiver is used for analyzing and outputting the signal sent by the transmitter in real time and transmitting the mouse and keyboard signal back to the transmitter in real time.
The second KVM module 24 includes a dual-layer port for receiving mouse and keyboard signals simultaneously, and the transmitter analyzes the keyboard and mouse signals transmitted back from the receiver in real time to the local host.
When the receiver selects the audio mode to switch to transmit the ARC signal, the receiver receives an ARC signal output by an external HDMI display device through the HDMI output interface 25 and outputs the ARC signal to the second signal processor 21, the second signal processor 21 receives the ARC signal, the ARC signal is encoded by the second signal processor 21 and then output to the receiver through the RJ45 output interface 26, the first signal processor 21 of the receiver recovers the ARC signal and outputs the ARC signal to an external audio device through the first SPDIF transmission interface, the ARC signal is returned, and the audio formats of LPCM, DTS-HD and Dolby True HD are supported.
Wherein, the embodiment of the utility model provides an in the power supply mode be the first power supply of being supplied power by each part of transmitter alone to and, the second power supply of being supplied power by each part of receiver alone.
By adopting the audio/video signal extender, the transmission distance of the ultra-high definition video can be extended by using the Ethernet cables of the Cat5e cable, the Cat6 cable and the Cat7 cable which are cheap and easy to obtain, the extended distance is up to 70 meters, and the installation is simplified; 4K video, digital audio, ethernet and control signals can be transmitted through a single cable (Ethernet cable), and a plurality of cables among a source, a control system router and the HDMI display device are omitted.
The embodiment of the utility model provides an in the audio and video signal extender main function as follows: the highest resolution supports the ultrahigh definition resolution of 4Kx2K @60Hz, the HDR (YUV 4: 4) is supported, and the maximum transmission distance of 4K is 70 meters; the audio output separation is supported, the SPDIF input interface and the SPDIF output interface are included, and the bidirectional infrared/KVM control is supported; compatible HDCP2.2; HDMI2.0 is supported.
To sum up, in the scheme of this application the receiver with all be equipped with first infrared module 12 and the infrared module 22 of second that can realize the infrared control signal of bidirectional transmission between receiver and the receiver on the receiver, the user passes through a plurality of function ports commonly used that transmitter or receiver can the remote access computer, still include first SPDIF module 13, second SPDIF module 23 and audio mode select switch, can realize the infrared control signal transmission of bidirectional transmission, the passback of two-way SPDIF signal transmission and ARC signal, it is just as convenient as direct access equipment on computer mainframe that the user is when the remote access computer, greatly improved use experience, computer lab has been made things convenient for, the demand that needs the remote control computer such as control computer room.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims. The above description is given for the exemplary application of the present invention with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above method, as long as the present invention adopts various improvements of the method concept and the technical solution, or the present invention is directly applied to other occasions without improvement, and all of them are within the protection scope of the present invention.
Claims (8)
1. A multifunctional audio/video signal extension device is characterized by comprising a transmitter for receiving signals from a signal source, a receiver for sending signals to a target end, and a twisted pair for communicating the transmitter and the receiver; the transmitter comprises an HDMI input interface, a first KVM module, a first SPDIF module, a first infrared module, a first signal processor, an RJ45 output interface and a first power supply for supplying power to the transmitter circuit; the receiver comprises an RJ45 output interface, a second KVM module, a second SPDIF module, a second infrared module, a second signal processor, an HDMI output interface and a second power supply for supplying power to the receiver circuit, and the second power supply supplies power to all parts of the receiver circuit.
2. The multifunctional audio-video signal extension device according to claim 1, wherein the first SPDIF module comprises a first SPDIF transmitting interface and a first SPDIF receiving interface, and the first SPDIF transmitting interface and the first SPDIF receiving interface are respectively connected to the first signal processor.
3. The multifunctional audio-video signal extension device according to claim 1, wherein the second SPDIF module comprises a second SPDIF transmitting interface and a second SPDIF receiving interface, and the second SPDIF transmitting interface and the second SPDIF receiving interface are respectively connected to the second signal processor.
4. The multifunctional audio/video signal extension device according to claim 1, wherein the first infrared module and the second infrared module respectively comprise a signal transmitting head and a signal receiving head, and the signal transmitting head and the signal receiving head are used for connecting infrared equipment to realize bidirectional infrared control of the first infrared module and the second infrared module.
5. The multifunctional audio/video signal extension device according to claim 1, wherein the first KVM module is connected to the host computer through a USB cable, and the second KVM module is connected to the mouse and the keyboard through a USB cable.
6. The multifunctional audio-video signal extension device according to claim 1 or 5, wherein the second KVM module comprises a dual layer port for connecting a mouse and a keyboard.
7. The multifunctional audio-video signal extension device according to claim 1, further comprising an audio mode selection switch disposed outside the transmitter and the receiver, wherein the audio mode selection switch can selectively switch to output an SPDIF audio signal or an ARC audio signal.
8. The multifunctional audio/video signal extension device according to claim 1, wherein the twisted pair is one of a Cat5e line, a Cat6 line, and a Cat7 line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222871241.6U CN218450224U (en) | 2022-10-28 | 2022-10-28 | Multifunctional audio and video signal extension device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222871241.6U CN218450224U (en) | 2022-10-28 | 2022-10-28 | Multifunctional audio and video signal extension device |
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| Publication Number | Publication Date |
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| CN218450224U true CN218450224U (en) | 2023-02-03 |
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| CN202222871241.6U Active CN218450224U (en) | 2022-10-28 | 2022-10-28 | Multifunctional audio and video signal extension device |
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| CN (1) | CN218450224U (en) |
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- 2022-10-28 CN CN202222871241.6U patent/CN218450224U/en active Active
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